Sash-fastener



J. H. COBB.

SASH FASTENER- APPLICAUON man APR. 10. 1919.

- ama Aug 12, 1919.

J'07m 1i. C0716.

JOHN H. COBB, OF FAIRFIELD, CONNECTICUT.

SASH-FASTENER.

Specification of Letters Patent.

Patented Aug. 12, 1919.

Application filed April 10, 1919. Serial No. 289,035.

To all whom it may concern:

Be it known that I, JOHN H. COBB, a citizen of the United States,residing at the town of Fairfield, in the county of Fairfield and Stateof Connecticut, have invented certain new and useful Improvementsin'Sash- Fasteners; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in windowfasteners, and the primary object of the invention is to provide afastener of this type which is of simple and economical construction,and which can be easily and quickly operated and which has simple andnovel means for holding the parts in positive locked position.

The invention relates to the type of window fastener in which bothsashes are locked either in closed position, or in various openpositions, and further aims to provide means which is of novelconstruction involving a minimum of parts.

In the drawings:

Figure l, is a sectional view showing the invention applied to thesashes and in locked position;

Fig. 2, is a top plan view with the cover plate removed, showing theparts in retracted position; and

Fig. 3, is a section on line 33 of Fig. 1.

In proceeding in accordance with the present invention, a casing isemployed having a base plate 1, formed with cut-out portions to rovide aguide for a sliding locking bolt or member 2, and a curved pivotedlocking bolt or member 3, the latter being teusioned by a spring 4, andresting in retracted position on or against a seat 5, formed on the baseplate. The sliding bolt 2, has an enlarged inner end portion 6, formedwith a cam face 7, disposed at an incline as shown, the cam face beingfor engagement with the curved rear edge of the pivoted bolt 3, for apurpose shortly to be set forth. A lug 8, is formed on the sliding bolt2, and projects upwardly therefrom, and is adapted to be received ineither of two apertures 9, formed in a latching plate 10, which latteris hinged at 11, to a cover plate or closure 12, the cover plate havinga cut-out in which the flap or plate 10, is pivoted, so that as shown inFig. 3,

the plate 10, will rest directly on top of the sliding bolt 6, andreceive the lug 8, of the latter in one of its two openings 9. The plate10, is preferably formed with a depending finger grip 10, so as topermit of easy manipulation thereof.

As shown in Figs. 1 and 2, the casing has a cut-out 13, which is for thepurpose of receiving the sash cord 14, the device being screwed to thetop of the lower sash close to the upper sash as depicted in Fig. 1,while the window casing is formed with a series of vertical spacedopenings 14, for receiving the sliding bolt, and the side rail of theupper sash is formed with a like series of openings 15, to receive thepivoted bolt 3.

In operation, the flap or plate 10, is lifted, and the lug 8, gripped tothrow the bolts to either locked or unlocked positions, the two boltsmoving in unison due to the cam face 7, which acts to move the pivotedbolt outwardly, and the spring 4:, which acts to move the bolt 3,inwardly upon retraction of the support afforded by the cam face 7,following which the flap 10, is moved downwardly to reengage the lug 8,and lock or latch the two bolts. The openings 9, are spaced at suchdistance apart so that in one position of the parts one opening willreceive lug S, to hold the parts locked and in another position of theparts will receive the lug 8, in the other opening to hold the partsinoperative.

It will be apparent from the foregoing that the device involves aminimum of parts which are not likely to become out of order and that asimple and easily operated lock is afforded by the mere swinging of theflap 10, to hold the parts positively in operative or inoperativepositions, the movement of the two bolts in unison being easily andquickly effected by mere sliding of bolt 2, upon gripping of or throughthe medium of the lug 8.

What is claimed is:

1. In a window fastener, a casing composed of a base plate formed with acut-out to form a curved seat, a sliding bolt in the cut-out having anenlarged rear end formed with an inclined cam face, a lug projectingupwardly from the bolt, a curved pivoted bolt in the cut-out resting inone position against the seat, a spring for tensioning the pivoted boltto normally hold same within the cut-out, a cover plate for the casinghaving a cut-out, a plate hinged to the cover plate and operating in thecut-out of the latter and formed with a plurality of spaced openings toreceive the lug in different positions of the sliding bolt, and saidcasing being formed with a cut-out in an end thereof to receive the sashcord, and beingformed forhsecurement to the upper rail of the lower sas2. In a window fastener, a casing having a cover, the latter formed witha cut-out, a plate hinged to the casing and operating in the cut-out ofthe cover and formed with a pair of spaced openings, a sliding bolt inthe casing having a lug receivable in either of the hinged plateopenings, a pivoted bolt in the casing operated by the outward movementof the sliding bolt, and means to tension the pivoted bolt so as to movesame into the casing upon retraction of the sliding bolt.

3. In a window fastener, a casing formed with ways and mortises, asliding bolt and a pivoted bolt within said ways and mortises, thesliding bolt during its projection acting against the pivoted bolt toswing the latter to locking position, and a spring for withdrawing thepivoted bolt from looking position when the sliding bolt is retracted.

4. In a window fastener, a casing, a sliding bolt in the casing havingan enlarged contact portion, a pivoted bolt in the casing having itsbottom part in contact with said portion, whereby when the sliding boltis projected the pivoted bolt will be swung to looking position, andspring means which always acts against the pivoted bolt to return it tounlocked position.

In testimony whereof I aflix my signature.

JOHN H. COBB. WVitnesses:

T. WV. SMITH, M. T. LONGDEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. C.

